Much of the work will go to Northrop Grumman Corp. (NYSE: NOC) which produces software defined radios for the advanced fighter in San Diego’s Carmel Mountain Ranch neighborhood. The radios handle communication, navigation and other functions.

The 255 aircraft in the latest order will go to the U.S. Air Force, U.S. Marine Corps, U.S. Navy and to allies of the United States.

Work is expected to run through March 2023.

The majority of work on the F-35 aircraft — some 57 percent — is done in Fort Worth, Texas.